Validity and Interpretation

This paper claims that there is a plausible sense in which validity is a matter of truth preservation relative to interpretations of the sentences that occur in an argument, although it is not the sense one might have in mind. §1 outlines three independent problems: the first is the paradox of the sorites, the second concerns the fallacy of equivocation, and the third arises in connection with the standard treatment of indexicals. §2 elucidates the claim about validity, while §§3–5 show how the three problems outlined can be handled in accordance with it. §6 explains how the claim squares with the traditional idea that validity is related to formality, and in particular with a broadly accepted definition based on that idea, the model-theoretic definition of logical consequence. Unlike other works on the subject, this paper does not focus on necessity. It is not its intention to provide a characterization of necessity that conforms to some ideal of rigour or to some pre-theoretical understanding of validity. What follows can be taken as conditional on the assumption that such a characterization can be provided.     

Spontaneously Hypertensive Rats: Possible Animal Model of Sleep-Related Movement Disorders

Clinical experience suggests that restless legs syndrome (RLS), periodic leg movement (PLM), and attention-deficit hyperactivity disorder (ADHD) may co-occur in both children and adults. The purpose of the present study was to provide an electrocorticography and electromyography evaluation of the spontaneously hypertensive rat (SHR) to investigate the potential of this rat strain as an animal model of RLS–PLM. Initial work focused on evaluating sleep patterns and limb movements during sleep in SHR, having normotensive Wistar rats (NWR) as control, followed by comparison of two treatments (pharmacological–dopaminergic agonist treatment and nonpharmacological–chronic physical exercise), known to be clinically beneficial for sleep-related movement disorders. The captured data strengthen the association between SHR and RLS–PLM, revealing a significant reduction on sleep efficiency and slow wave sleep and an increase on wakefulness and limb movements for the SHR group during the dark period, as compared to the NWR group, effects that have characteristics that are strikingly consistent with RLS–PLM. The pharmacological and nonpharmacological manipulations validated these results. The present findings suggest that the SHR may be a useful putative animal model to study sleep-related movement disorders mechanisms.     

Finite Mixtures for Simultaneously Modeling Differential Effects and Nonnormal Distributions

Regression mixture models have been increasingly applied in the social and behavioral sciences as a method for identifying differential effects of predictors on outcomes. Although the typical specification of this approach is sensitive to violations of distributional assumptions, alternative methods for capturing the number of differential effects have been shown to be robust. Yet, there is still a need to better describe differential effects that exist when using regression mixture models. This study tests a new approach that uses sets of classes (called differential effects sets) to simultaneously model differential effects and account for nonnormal error distributions. Monte Carlo simulations are used to examine the performance of the approach. The number of classes needed to represent departures from normality is shown to be dependent on the degree of skew. The use of differential effects sets reduced bias in parameter estimates. Applied analyses demonstrated the implementation of the approach for describing differential effects of parental health problems on adolescent body mass index using differential effects sets approach. Findings support the usefulness of the approach, which overcomes the limitations of previous approaches for handling nonnormal errors.     

Deference as a normative power

Much of the literature on practical authority concerns the authority of the state over its subjects—authority to which we are, as G. E. M. Anscombe says, subject “willy nilly”. Yet many of our “willy” (or voluntary) relationships also seem to involve the exercise of practical authority, and this species of authority is in some ways even more puzzling than authority willy nilly. In this paper I argue that voluntary authority relies on a form of voluntary obligation that is akin (in some respects) to the kind of obligation one undertakes in making a promise. Voluntary authority depends, that is, on the possibility of taking on certain obligations more or less at will. It is generated through an interpersonal transaction that involves a directed act of deference, on one side, paired with appropriate uptake of that deference, on the other. Deference, in the relevant sense, should be understood as a normative power that is exercised when agents transfer deliberative discretion to others, undertaking directed obligations to treat others’ directives as content-independent and peremptory reasons. Voluntary authority, thus understood, is both grounded in and constrained by the equal moral authority or autonomy of the participants, since only autonomous agents have the standing to defer in a normatively significant way.     

“I-ness” and the dissociative process. Working with defensive and creative dissociations in the analytic process

The American Journal of Psychoanalysis - We suggest that the analytic dialogue develops as a continuous movement that we call “Dissociative Process”, and that this process is the...     

Searching where the treasure is: on the emergence of human companion animal partnership (HCAP)

Animal Cognition - In our view, the discipline, often referred to as human–animal interaction (HAI), lacks a well-defined conceptual framework. It is too narrow both with respect to the...     

Visual context modulates potentiation of grasp types during semantic object categorization

Substantial evidence suggests that conceptual processing of manipulable objects is associated with potentiation of action. Such data have been viewed as evidence that objects are recognized via access to action features. Many objects, however, are associated with multiple actions. For example, a kitchen timer may be clenched with a power grip to move it but pinched with a precision grip to use it. The present study tested the hypothesis that action evocation during conceptual object processing is responsive to the visual scene in which objects are presented. Twenty-five healthy adults were asked to categorize object pictures presented in different naturalistic visual contexts that evoke either move- or use-related actions. Categorization judgments (natural vs. artifact) were performed by executing a move- or use-related action (clench vs. pinch) on a response device, and response times were assessed as a function of contextual congruence. Although the actions performed were irrelevant to the categorization judgment, responses were significantly faster when actions were compatible with the visual context. This compatibility effect was largely driven by faster pinch responses when objects were presented in use-compatible, as compared with move-compatible, contexts. The present study is the first to highlight the influence of visual scene on stimulus–response compatibility effects during semantic object processing. These data support the hypothesis that action evocation during conceptual object processing is biased toward context-relevant actions.     

Personality and Optimal Experience in Adolescence: Implications for Well-Being and Development

Past research has repeatedly identified relations between optimal experience—or flow—and well-being across the lifespan. In the attempt to identify the conditions favoring this experience, some studies took into account personality traits. While most of them operationalized flow in terms of intensity, we presently focused on perceived occurrence versus absence of flow. Specifically, we investigated the relations between flow occurrence, hedonic and eudaimonic well-being, activities associated with flow, and personality in adolescence. A group of 408 Italian teenagers (mean age = 17.31; SD = 1.13) were administered Flow Questionnaire, Satisfaction with Life Scale, Positive and Negative Affect Schedule, Psychological Well-being Scales, and the Big Five Questionnaire. Participants reporting optimal experience in their lives were compared with those not reporting it. Results showed that adolescents experiencing flow reported higher satisfaction with life, hedonic balance, and psychological well-being than their counterparts. Findings from logistic regression analyses further showed that openness to experience was the sole personality factor predicting flow occurrence, and that no personality factors were predictive of type of activities adolescents associated with flow. Findings point to the promotion of optimal experience among adolescents through the support of curiosity and openness to new experiences in engaging opportunities for action. They further call for the development of an integrated model taking into account both individual predispositions and social and cultural factors in well-being promotion.     

Australian Trans Men: Development,Sexuality, and Mental Health

The aim of the study reported in this article was to gain an understanding of the experiences, developmental trajectories, and mental health status of Australian trans men. Participants were 279 trans men. The majority preferred to identify as “male”; from an early age, they had experienced their gender identity as different from that normatively expected of their natally assigned sex and had undertaken practices so as to facilitate their presentation as male in accordance with their gender identity. A majority reported a diagnosis of depression or anxiety within the last 12 months and attributed suicidal ideation and self‐harm and attempted suicide to personal issues with gender identity. Going through a masculinisation process and coming out reportedly led to improved mental health. The findings highlight the need to educate mental health and health care professionals on trans issues.